Spread the colors

nyu~ what ar ya doin????you have math exam tommorow~ >.<

this is for my friend the rainbow girl!
omg~it's so girly~so colorful~
im not god in making colorful, specially rainbow-theme~
hope it's not hurt you eyes~


sai+photoshop+illustrator(bg)~~
music notes using doraemon no uta piano theme~

I TRY TO USE SAI, BUT THE COLOR IS CHANGED A LOT WHEN I COMPRESS IT TO JPEG, it become so dead,angsty not colorful.......anybody can help me with it?